CLS Quality Control & Process Improvement 3

Question 1

Which quality control document formally defines the lubricant type, quantity, frequency, and method for each lubrication point on a machine?

Accepted Answer

Lubrication specification sheet (LSS)

Answer

A lubrication specification sheet (LSS) serves as the authoritative reference document for all lubrication parameters at each point.

Question 2

When analyzing a control chart for lubricant viscosity measurements, a run of 8 consecutive points above the mean but within control limits indicates:

Accepted Answer

A potential process shift that warrants investigation

Answer

Eight consecutive points on one side of the mean is a Nelson rule violation signaling a process shift, even if limits are not breached.

Question 3

A lubrication improvement team uses a fishbone (Ishikawa) diagram. In what scenario is this tool most useful?

Accepted Answer

Brainstorming all potential causes of a recurring bearing failure

Answer

A fishbone diagram systematically organizes all potential contributing causes of a problem to guide root cause analysis.

Question 4

What is the purpose of establishing a lubricant consolidation program in an industrial facility?

Accepted Answer

To reduce the number of lubricant types used, minimizing storage complexity and cross-contamination risk

Answer

Lubricant consolidation reduces SKUs, simplifies inventory management, and lowers the risk of using the wrong lubricant.

Question 5

Which process improvement methodology uses the DMAIC framework specifically for reducing defects in existing processes?

Accepted Answer

Six Sigma

Answer

Six Sigma uses DMAIC (Define, Measure, Analyze, Improve, Control) to systematically reduce defects and process variation.

(CLS) Certified Lubrication Specialist Practice Test

(CLS) Certified Lubrication Specialist Practice Test

CLS Quality Control & Process Improvement 3